9979090368 has 224 divisors, whose sum is σ = 29350655040. Its totient is φ = 2990407680.

The previous prime is 9979090361. The next prime is 9979090391. The reversal of 9979090368 is 8630909799.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9979090361) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 17294496 + ... + 17295072.

It is an arithmetic number, because the mean of its divisors is an integer number (131029710).

Almost surely, 2^9979090368 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 9979090368, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14675327520).

9979090368 is an abundant number, since it is smaller than the sum of its proper divisors (19371564672).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

9979090368 is a wasteful number, since it uses less digits than its factorization.

9979090368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 672 (or 636 counting only the distinct ones).

The product of its (nonzero) digits is 6613488, while the sum is 60.

The square root of 9979090368 is about 99895.3971311992. The cubic root of 9979090368 is about 2152.9320276563.

The spelling of 9979090368 in words is "nine billion, nine hundred seventy-nine million, ninety thousand, three hundred sixty-eight".